Exclusive: TTAC Takes Apart Both Toyota Gas Pedals

Update: To see all of TTAC’s related articles on the subject of Toyota gas pedals, go here:

In yesterday’s post , we offered a bounty for anyone to open up both the CTS (bottom) and Denso (top) Toyota gas pedal assemblies. No one took us up, and no one anywhere else has done it, so we took it upon ourselves . Here they are, both e-pedal assemblies taken apart and examined, in our quest to understand if and what the significant differences are, and how Toyota’s possible “shim” fix would work. On initial observation, it appears that the CTS may be perceived as being the more solidly engineered/built unit, in that the pedal pivots on a traditional and solid steel axle whose bearings are brass or bronze sleeves. The Denso’s whole pivot and bearing surfaces are relatively flimsy-feeling plastic. But that can be deceptive, and we’re not qualified to judge properly if it is indeed inferior or superior. So the question that goes beyond the analysis of these e-pedals is this: are these units really the full source of the problem, or are they scape goats for an electronics and/or software glitch? Pictures and tear down examination and analysis follows:

Update #2: It’s clear to me now that the CTS unit I took apart already had the side cover plates (sheet metal) removed before I examined it. One can see where they fit, and are obviously intended to protect the exposed axle pivot and bushing seen above and below:

(Update #3: Also see our follow-up stories on Toyota’s fix and our replication of the fix and its results)

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  • DenverMike Pininfarina I know it's not related to this, I just like saying it.
  • Matt Posky I don't understand the appeal of fake meat and this seems to operate under a similar premise: You don't want the V8 because someone says it's bad for you. But you can have something designed to mimic the experience because that's what your body actually wants. The styling is cool I guess. But I don't understand why EVs don't just lean into what they are. Companies can make them produce any wooshing or humming noises they want. Buiding an entire system to help you pretend it still has a combustion engine seems a little lame.
  • DenverMike I'm sure it would have a volume control. It's nice to sneak into my neighborhood at 2am quietly. Or creep out, 4am. I don't get much sleep OK, but I always keep my V8 exhaust stock, as much as I love the sound of others loud. My stereo would make it pointless anyway.
  • FreedMike I’d love to see more tracks, or off-road parks if that’s your jam. But for those of us who’d love to take part in this kind of thing, practicality is the limiting factor. Racing has always been expensive, and most people don’t want to do it with their daily drivers - I’d love to see what my GLI would do on a track, but not at the cost of voiding my warranty, or potentially wrapping up the car (which I’m pretty sure would put me on State Farm’s Keith Moon-trashing-the-Holiday Inn list). As a practical matter, you have to have a vehicle that is intended to be used for racing, and the ability to fix it; most folks don’t have that kind of money or skill set.
  • Dukeisduke Oh, so it *is* a hatchback. Last night, I watched the replay of the reveal with Tim Kuniskis presenting the car, on Instagram. A "fly-through" of the car on the pre-rollout video made it look like they were going through an open hatch, so it had me wondering. The car attracted a lot of negative comments on IG, on feeds of guys who were there live.This is probably the least "electric car" electric car.